Skip to Content

Silver-Foil Psychrometer for Measuring Leaf Water Potential in situ.

Silver-Foil Psychrometer for Measuring Leaf Water Potential in situ.

Science (New York, N.Y.) (1972-09-01)

G J Hoffman, S L Rawlins

ABSTRACT

The water potential of leaves in situ can be measured without temperature control with a miniature, single-junction psychrometer constructed from silver foil and attached to the leaf with a silver-impregnated, conductive coating. The temperature of the psychrometer has been found to stay within 0.025 degrees C of the temperature of a simulated leaf when the latter temperature was changing at a rate of 1 degrees C per minute. Leaf water potentials can be measured with a precision of +/- 1 bar, or better.

MATERIALS

Product Number

Brand

Product Description

Silver, foil, 6mm disks, thickness 0.015mm, 99.97%

Silver, foil, 6mm disks, thickness 0.125mm, annealed, 99.95+%

Silver, foil, 8mm disks, thickness 0.20mm, as rolled, 99.95+%

Silver, foil, 8mm disks, thickness 0.007mm, 99.97%

Silver, foil, not light tested, 150x150mm, thickness 0.004mm, 99.97%

Silver, foil, 8mm disks, thickness 0.035mm, as rolled, 99.95+%

Silver, foil, light tested, 100x100mm, thickness 0.025mm, as rolled, 99.99+%

Silver, foil, light tested, 150x150mm, thickness 0.05mm, annealed, 99.95+%

Silver, foil, light tested, 50x50mm, thickness 0.015mm, 99.97%

Silver, foil, 8mm disks, thickness 0.25mm, as rolled, 99.95+%

Silver, foil, 8mm disks, thickness 0.008mm, 99.95+%

Silver, foil, not light tested, 100x100mm, thickness 0.003mm, 99.9%

Silver, foil, 6mm disks, thickness 0.5mm, as rolled, 99.99+%

Silver, foil, light tested, 150x150mm, thickness 0.05mm, as rolled, 99.95+%

Silver, foil, not light tested, 150x150mm, thickness 0.025mm, as rolled, 99.95+%

Silver, foil, 8mm disks, thickness 1.0mm, as rolled, 99.95+%

Silver, foil, 6mm disks, thickness 0.5mm, as rolled, 99.95+%

Silver, foil, 6mm disks, thickness 1.0mm, as rolled, 99.95+%

Silver, foil, light tested, 150x150mm, thickness 0.025mm, as rolled, 99.95+%

Silver, foil, not light tested, 25x25mm, thickness 0.006mm, 99.97%

Silver, foil, 8mm disks, thickness 0.5mm, as rolled, 99.95+%

Silver, foil, 8mm disks, thickness 0.009mm, 99.97%

Silver, foil, light tested, 150x300mm, thickness 0.05mm, as rolled, 99.95+%

Silver, foil, light tested, 100x100mm, thickness 0.02mm, 99.97%

Silver, foil, not light tested, 150x150mm, thickness 0.02mm, 99.97%

Silver, foil, 8mm disks, thickness 0.05mm, as rolled, 99.95+%

Silver, foil, not light tested, 25x25mm, thickness 0.002mm, 99.97%

Silver, foil, light tested, 50x50mm, thickness 0.025mm, as rolled, 99.99+%

Silver, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.95+%

Silver, foil, 8mm disks, thickness 0.125mm, as rolled, 99.95+%